The files and folders to sync you always have access to the latest version of digital files and folders on several computers and external hard drives. In addition, there is always a backup available so that files are never lost.
UPDATE: SyncToy is unfortunately not more by Microsoft offered. Take a look in our overview of synchronization software for free alternatives.
With the free download of SyncToy, you can your files intelligently synchronize, copy, and backup.
Windows Explorer is a useful tool when copying files, but Windows can't recognize or a file is renamed.
Suppose you have a folder with files of the last meeting on your laptop. Copy these files to your desktop. Then rename a number of files and other is remove. To make sure that you have all the files on your desktop, copy the whole folder again. The renamed and deleted files are not overwritten. They remain so, the cost of disk space and ensure that the overview is gone. This scenario is to prevent the entire folder on your desktop to delete and re-copy. But then you won't know for sure whether you on your desktop, no files have been added or renamed.
To ensure that you are on different computers, always the latest version of a file is by Microsoft the free program SyncToy released.
SyncToy has the following characteristics:
You can free download SyncToy and safe install the latest trial or new full version for Windows 10 (x32, 64 bit) from the official site.